low to mid 70s antioch and fremont, everybody else in the 60s napa, santa rosa and half moon bay low to mid 50s, mid to upper 50s monterey bay and inland. the record heat breaks today, clouds will return to the bay and coast, cooler more comfortable, better sleeping weather tonight, it will like fall this weekend what a swing, almost 30° between record highs and this what we are going to have this weekend. yesterday a few record highs where the asterisk is. today 10 degrees cooler in concord, san jose, 16 santa rosa, 19° cooler this afternoon in san francisco. the reason why, high pressure split by this low, like a battering ram coming through. pushing the high pressure and heat away from us. the pattern starts breaking today. this morning no cloud cover out there to speak of. as we head towards 1:00 sea breeze kicks in, clouds not far behind, temperatures falling this afternoon at the coast falling late this afternoon around the bay. before anyone mid to upper 80s in the south bay. low to mid 80s most of the peninsula, upper 60s to low 70s at the coast cool afternoon mid to upper